1319nm连续激光辐照皮肤组织的光热效应实验研究  

Optical-thermal Effect of Skin Irradiated by 1319 nm Continuous-Wave Laser

作　　者：陈燕[1] 牛燕雄[1,2] 唐芳[1] 杨会钗[3] 张雏[1] 姜楠[1] 杨海林[1] 

机构地区：[1]解放军军械工程学院光学与电子工程系光学教研室,石家庄050003 [2]清华大学精密仪器测试技术与仪器国家重点实验室,北京100084 [3]河北医科大学第四医院病理科,石家庄050011

出　　处：《光子学报》2009年第5期1259-1263,共5页Acta Photonica Sinica

基　　金：中国博士后科学基金(20060400418);解放军军械工程学院重点研究基金(YJJXM05002)资助

摘　　要：实验测定了离体人皮肤组织在1319nm连续Nd:YAG激光辐照下径向和轴向不同位置的温度分布,研究了激光辐照功率密度和作用时间对皮肤组织温升分布的影响.结果表明,皮肤组织中的温度分布与探测位置、激光辐照功率密度以及作用时间密切相关;激光输出功率密度15.80W/cm2时安全辐照时间阈值为120s,功率密度48.92W/cm2时安全辐照时间阈值为6s.Temperature distributions in vitro human skin were measured under irradiation of continuous wave Nd：YAG laser at the wavelength of 1 319 nm. The dependence of the temperature distribution on the measuring position and irradiation power density,and duration was studied in detail. The results show that the temperature distribution in the skin tissue can be significantly affected by measuring position and the power density, and duration of irradiation laser. The safe duration threshold is 120 s when the power density is 15.80 W/cm2,and the safe duration threshold is 6 s when the power density is 48.92 W/cm2.

关 键 词：激光安全 连续激光 离体人皮肤 温度测量 光热效应 

分 类 号：Q682[生物学—生物物理学]